Wall-cleaning compound.



To all whom it may concern):

' dry-cleanin UNITED S A ES PATENT OFFICE. HENRI R. HENDEiTs N, on ST. LOUIS, MISSOURI.- I WALL-CLEANING ComPoIuND.

I No. -s39,2eo.

Specification of Letters Patent.

Patented Dec, 25, 1906.

Application filed January 18, 1906. Serial No. 296,867.

Be it known that I HENRI R. HENDERSON, a citizen of the United States, residin' in the city of St. Louis, in the State of have invented certain new and useful Improvements'in Wall-Cleaning Compounds, of

which the following is a full, clear, and exact description.

My' vention relates to an improvement'in compounds for use in what is termed the rocess of cleaning the walls and ceilings uildings, and particularly the decorations thereon, such asWall-paper.

The invention has for its object to roduce a' compound of .the character name that is not liable to become deteriorated and which is preservable in condition for use for any reasonable period and may be'utilized with: out pre aration on the part of the user.

Brie y stated, the compound consists of a paste produced by combining flour or other starchy material, water, sodium chlorid,

alum, carbolic acid, sodium bicarbonate, and common chalk. While the proportions in which the ingredients of m compound may be varied more or less, and; therefore do not Wish to be restricted to any exact proportions, I prefer the following: fifty-two parts of flour nine parts of sodium chlorid, thirt -seven parts of water, one part of carbolic acid, twotenths of one part of alum, six-tenths of one I part ofsodium bicarbonate, and two-tenths of one part of common chalk.

In preparing my com ound I first mix together 'al of the ingre ients to cause all of them to become thoroughly commin led in a It en subject said mass to the'action of heat for a sufficient length of time to cook itand causethe water therein to be thorou hly absorbed by the various ingredients, W ereb the mass,

which was previously of pasteike consistency, is transformed into a cooked and kneadable dough, which may be readily worked in p the hands, but which is slightly disintegrable under frictional action, in order that when the material is to be used in cleaning asurface, such as a wall, it.will break intosmall rolls as the dirt is gathered thereon.

I ish to here call attention to two of the ingredients that enter into In compound; and in the use of which in com ination with the other ingredients of a wall-cleaning comound my present improvement resides. hese ingredients are the sodium bicarbonate 'ssouri,

friction of t and common chalk. The sodium bicarbonate is used for the purpose. of preventing and removing the characteristic' stickiness that is commonly .present in wall-cleaning -c'ompounds and alsoto prevent the compound from becoming sticky from age or exposure to heat,'-and moreparticularly to heat to -which the compound is subjected by its being absorbed from the natural heat of the hands of a erson'using the com ound and lie compound on a wa 1 during a cleaning operation.

. without including sodium bicarbonate therein will become so stickyas to render it extremely unsatisfactory in use, due to its.

stickin to the surface being cleaned whenever, tie compound is permitted to rest against the surface without being moved thereon, as at the end of each cleaning stroke. This sticking of the compound to the surface causes marks of dirt to be left on the surface which cannot be eradicated. The presence of the sodium bicarbonate in the compound removes the objectionable stickiness and obviates the formation of dirtmarks on the cleaned surface. Moreover, the compound if prepared without the addition of the sodium bicarbonate will become too soft and sticky for satisfactory use when e osedto a warm temperature or from age.

he common chalk is used in the compound for the p ose of rendering it more readil 'disintegrab e in order that the compoun will break into minute rolls when rubbed over the surface of a wall and whereby the dirt, upon such surfaces is more read- .ily removed, due to the better disintegration of the mass. p

I claim as my invention- 1 1. In a compound of the character described, the combination of flour, sodium chlorid, water, carbolic acid, alum, sodium bicarbonate and common chalk.

2. A compound of the character described consisting of fifty-two parts of flour, nine parts of sodium chlorid, thirty-seven parts of water, one art of carbolic acid, two-tenths of E. S. KNIGHT, 'NELLIE V. ALEXANDER.

one part 0 alum, six-tenths of one part of sodium bicarbonate, two-tenths of one part of A compound prepared 

